TY - GEN
T1 - Performance analysis of transmissions opportunity limit in 802.11e WLANs
AU - Peng, Fei
AU - Ripeanu, Matei
AU - Qian, Depei
PY - 2008
Y1 - 2008
N2 - Transmission opportunity (TXOP) is a channel control mechanism introduced in the IEEE802.11e wireless LAN standard to improve channel utilization. In a previous paper, we have proposed a novel scheme to effectively predict the throughput of various TXOP classes based on a common threshold. In this paper, we extend this solution to incorporate the impact of the contention window (CW) size. We propose a novel concept employing different thresholds for individual classes controlled by CW and TXOP parameters under both Basic and RTS/CTS access modes. We use analytical modeling and simulations to investigate the individual and aggregate throughput based on the condition of thresholds. Our analytical models and simulation results indicate that the improved service differentiation and aggregate throughput can be achieved by exploiting TXOP and CW differentiation mechanisms compared to using TXOP mechanism only.
AB - Transmission opportunity (TXOP) is a channel control mechanism introduced in the IEEE802.11e wireless LAN standard to improve channel utilization. In a previous paper, we have proposed a novel scheme to effectively predict the throughput of various TXOP classes based on a common threshold. In this paper, we extend this solution to incorporate the impact of the contention window (CW) size. We propose a novel concept employing different thresholds for individual classes controlled by CW and TXOP parameters under both Basic and RTS/CTS access modes. We use analytical modeling and simulations to investigate the individual and aggregate throughput based on the condition of thresholds. Our analytical models and simulation results indicate that the improved service differentiation and aggregate throughput can be achieved by exploiting TXOP and CW differentiation mechanisms compared to using TXOP mechanism only.
UR - https://www.scopus.com/pages/publications/70249102116
U2 - 10.1145/1400713.1400745
DO - 10.1145/1400713.1400745
M3 - 会议稿件
AN - SCOPUS:70249102116
SN - 1565553187
SN - 9781565553187
T3 - Proceedings of the 11th Communications and Networking Simulation Symposium, CNS'08
SP - 188
EP - 193
BT - Proceedings of the 11th Communications and Networking Simulation Symposium, CNS'08
T2 - 11th Communications and Networking Simulation Symposium, CNS'08
Y2 - 14 April 2008 through 17 April 2008
ER -